[hobbes78]

One system based on semiconductors will eventually fail, as their failure rate follows the bathtub curve

https://en.wikipedia.org/wiki/Bathtub_curve

As much as I call cryptocurrencies a cancer, I admit storing on Bitcoin blockchain is probably the most resilient way, as its constantly being replicated across a huge amount of machines around the planet...

[orangepurple]

You can do a lot to mitigate semiconductor failure rate over time by controlling temperature and humidity and temperature swings